Step 1: Materials & Tools.
1)big unhandy vacuum cleaner
2)big useless backpack
Step 2: Cut & Draw.
Here is a list of the necessary holes in your backpack:
1) hose hole
this is where the hose will exit the backpack
2) plug hole
this is where the plug will exit the backpack
3) air hole (most important one!!)
this is where the exiting air from the vacuum cleaner will be able to escape